Pieters W., Padget J., Dechesne F., Dignum V., Aldewereld H..  2013.  Obligations to enforce prohibitions: on the adequacy of security policies. SIN '13 - Proceedings of the 6th International Conference on Security of Information and Networks, Aksaray, Turkey. :54–61.

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Pieters W., Padget J., Dechesne F., Dignum V., Aldewereld H..  2015.  Effectiveness of qualitative and quantitative security obligations. Journal of Information Security and Applications. 22:3–16.

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Pieters W., Padget J., Dechesne F., Dignum V., Aldewereld H..  2014.  Effectiveness of qualitative and quantitative security obligations. Journal of Information Security and Applications. to appear:1–14.

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